ELLIPTICITY OF THE EARTH
\ɪlɪptˈɪsɪti ɒvðɪ ˈɜːθ], \ɪlɪptˈɪsɪti ɒvðɪ ˈɜːθ], \ɪ_l_ɪ_p_t_ˈɪ_s_ɪ_t_i_ ɒ_v_ð_ɪ_ ˈɜː_θ]\
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The figure of the earth is very nearly that of an oblate spheroid ; the equatorial being the greatest diameter, the polar the least. The ratio which the excess of the equatorial above the polar diameter bears to the equatorial diameter is called the E. of the earth, and is very nearly 1 : 300.
By Henry Percy Smith
Word of the day
hydromorphic
- [Greek] Structurally adapted to an aquatic environment, as organs of water plants.
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